Signal-flow graph analysis of SC networks

Using well known signal-flow graph techniques, the closed-form analysis of switched-capacitor (SC) networks is shown to be straightforward and simple. The method is based on an extension of the already established four-port and multiport analysis of SC networks via the transmission matrix. Tables of commonly used SC networks, in which the corresponding signal-flow graphs are given, make the analysis readily applicable to most types of SC networks, including complex biquads and ladder networks. The method is also a useful tool for the synthesis of new SC circuits.